Finding the Fourth Proportional to 65,788.30, 90,788.81 and 37,109.33

Step by Step Solution

1. Step 1: Write the proportion equation
   65,788.30 : 90,788.81 = 37,109.33 : x
2. Step 2: Convert to fraction form
   65,788.30/90,788.81 = 37,109.33/x
3. Step 3: Cross multiply
   65,788.30x = 90,788.81 × 37,109.33
4. Step 4: Simplify right side
   65,788.30x = 3,369,111,456.65
5. Step 5: Solve for x
   x = 3,369,111,456.65/65,788.30
6. Step 6: Final answer
   x = 51,211.41